Friday, March 07, 2014

Procalcitonin as a marker for septic arthritis and osteomyelitis

Patients of all age groups (n = 82) with suspected Acute Osteomyelitis and Septic Arthritis were prospectively included in this study. All patients were subjected to TC, CRP, PCT, IgM Dengue, IgM Chikungunya, pus and blood culture and sensitivity. At the end of the study, patients were classified into 3 groups: Group 1 = Confirmed Pyogenic (n = 27); Group 2 = Presumed Pyogenic (n = 21); Group 3 = Non – infective inflammatory (n = 34).

Results

Group 1 has higher mean PCT levels than Group 2 and 3 (p less than 0.05). PCT, at 0.4 ng/ml, was 85.2% sensitive and 87.3% specific in diagnosing Septic Arthritis and Acute Osteomyelitis. In comparison, PCT at conventional cut – off of 0.5 ng/ml is 66.7% sensitive and 91% specific.

Conclusion

Serum Procalcitonin, at a cut – off of 0.4 ng/ml, is a sensitive and specific marker in the diagnosis of Septic Arthritis and Acute Osteomyelitis.

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About Me

Originally a traditional internist, I became a hospitalist in the early days of the “movement.” I'll be writing about clinical topics, mainly in hospital medicine. Occasionally politics and other stuff creep in. This content does not constitute medical advice (consult your physician) nor is it authoritative (check primary sources).